Growth and optical properties of ZnO microwells by chemical vapor deposition method
The well-like ZnO nanostructures were obtained by chemical vapor deposition method. The uniform and dense ZnO slim nano-columns were grown along the circle to form a microwell. The growth mechanisms, such as 1D linear, 2D screw dislocation and step growth are discussed. These observations provide so...
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| Veröffentlicht in: | Physica. B, Condensed matter Condensed matter, 2009-02, Vol.404 (2), p.315-319 |
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| creator | Zang, C.H. Liu, Y.C. Zhao, D.X. Zhang, Y.S. |
| description | The well-like ZnO nanostructures were obtained by chemical vapor deposition method. The uniform and dense ZnO slim nano-columns were grown along the circle to form a microwell. The growth mechanisms, such as 1D linear, 2D screw dislocation and step growth are discussed. These observations provide some insight into the growth kinetics in vapor–solid growth process. The fabrication of ZnO microwell morphology provided a direct experimental evidence for explaining the 1D growth mechanism based on the axial screw dislocation. Photoluminescence (PL) microscopy showed the surface-related optical properties. The green light emission enhancement revealed that the ZnO microwells have waveguide properties. The abnormal enhancement of integrated PL intensity of deep-level emission with temperature increase showed abundant surface state existence. |
| doi_str_mv | 10.1016/j.physb.2008.11.007 |
| format | Article |
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| ispartof | Physica. B, Condensed matter, 2009-02, Vol.404 (2), p.315-319 |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Condensed matter: electronic structure, electrical, magnetic, and optical properties Cross-disciplinary physics: materials science rheology Exact sciences and technology Materials science Nanoscale materials and structures: fabrication and characterization Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures Photoluminescence Physics ZnO microwells |
| title | Growth and optical properties of ZnO microwells by chemical vapor deposition method |
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